EP 1132043 A3 20041020 - Apparatus for testing the visual field of the human eye
Title (en)
Apparatus for testing the visual field of the human eye
Title (de)
Gerät zur Prüfung des Gesichtsfeldes des menschlichen Auges
Title (fr)
Appareil d'examen du champ visuel de l'oeil humain
Publication
Application
Priority
- DE 19625199 A 19960624
- EP 97107274 A 19970502
Abstract (en)
[origin: EP0815789A2] One or more testing marks are projected onto a dish-shaped transparent shield (1). The sources (9,10) for the marks (4) are on a swing arm following the outline of the shield and at a constant distance from it. The marks are projected from the rear side and roughly at right angles to the shield surface. The sources and thus the marks travel over the surface. Liquid-emission or laser diodes can be used as the sources, being either red and yellow or yellow, red and green, each illuminating a mark. A glass bar (8) can be provided, mixing the light emanating from the diodes.
IPC 1-7
IPC 8 full level
A61B 3/024 (2006.01); A61B 3/06 (2006.01)
CPC (source: EP US)
A61B 3/024 (2013.01 - EP US)
Citation (search report)
- [A] CH 264664 A 19491031 - M J PURTSCHERT & CO AG LUZERN [CH]
- [A] US 2803990 A 19570827 - MACKNIGHT EDGAR W
- [A] US 2837964 A 19580610 - MARIE GAMBS PAUL FREDERIC
- [A] FR 2301215 A1 19760917 - RODENSTOCK OPTIK G [DE]
- [A] US 3947099 A 19760330 - GROLMAN BERNARD, et al
- [A] US 4561738 A 19851231 - HUMPHREY WILLIAM E [US], et al
Designated contracting state (EPC)
DE ES FR GB IT
DOCDB simple family (publication)
EP 0815789 A2 19980107; EP 0815789 A3 19980114; EP 0815789 B1 20040331; DE 59711461 D1 20040506; EP 1132043 A2 20010912; EP 1132043 A3 20041020; ES 2217348 T3 20041101; JP 3215357 B2 20011002; JP H1057313 A 19980303; US 5870169 A 19990209
DOCDB simple family (application)
EP 97107274 A 19970502; DE 59711461 T 19970502; EP 01114093 A 19970502; ES 97107274 T 19970502; JP 16716397 A 19970624; US 87437597 A 19970619